his mother worried about his going off alone. >> he said, he was a big boy. they had to catch him first. >> lubie was a good student, a sophomore in high school. a witness at the shopping center that day saw lubie with a man and helped a police artist draw this sketch. a man with a baseball cap, perhaps, a scar on his cheek. lubie never came home. >> i believe he had been kidnapped. >> police searched the woods and atlanta. they did not find lubie. instead, police found two other bodies. young boys who had disappeared ten miles and a month apart. yet, both left here, at the same dumping ground. the number of known dead now 15. the unsolved murders of so many children had become front-page news around the nation and the world. >> this is the reward -- >> the city announced a $100,000 reward, soon to grow to half a million. the task force was swamped with sketches of suspects, none of them alike and many suggests by psychics. at the state crime lab, larry peterson was sifting through thousands of fibers. nylon, ray onray on, acountry lick, asetate. >> it was li